Here is some debug output using dig and host (192.168.159.2 is the DNS server address as sent by DHCP):
$ host -v www.google.com
Trying "www.google.com"
Received 32 bytes from 127.0.1.1...
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Here is some debug output using dig and host (192.168.159.2 is the DNS server address as sent by DHCP):
$ host -v www.google.com
Trying "www.google.com"
Received 32 bytes from 127.0.1.1#53 in 15 ms
Trying "www.google.com.localdomain"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 30063
;; flags: qr aa ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.google.com.localdomain. IN A
;; ANSWER SECTION:
www.google.com.localdomain. 5 IN A 173.194.35.179
Received 60 bytes from 127.0.1.1#53 in 14 ms
Trying "www.google.com.localdomain"
Host www.google.com.localdomain not found: 5(REFUSED)
Received 44 bytes from 127.0.1.1#53 in 31 ms
Trying "www.google.com.localdomain"
Host www.google.com.localdomain not found: 5(REFUSED)
Received 44 bytes from 127.0.1.1#53 in 16 ms
$ host -v www.google.com 8.8.8.8
Trying "www.google.com"
Using domain server:
Name: 8.8.8.8
Address: 8.8.8.8#53
Aliases:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42891
;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.google.com. IN A
;; ANSWER SECTION:
www.google.com. 134 IN A 173.194.70.104
www.google.com. 134 IN A 173.194.70.106
www.google.com. 134 IN A 173.194.70.105
www.google.com. 134 IN A 173.194.70.99
www.google.com. 134 IN A 173.194.70.147
www.google.com. 134 IN A 173.194.70.103
Received 128 bytes from 8.8.8.8#53 in 34 ms
Trying "www.google.com"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37509
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.google.com. IN AAAA
;; ANSWER SECTION:
www.google.com. 300 IN AAAA 2a00:1450:4001:c02::68
Received 60 bytes from 8.8.8.8#53 in 48 ms
Trying "www.google.com"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 35903
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;www.google.com. IN MX
;; AUTHORITY SECTION:
google.com. 60 IN SOA ns1.google.com. dns-admin.google.com. 1533863 7200 1800 1209600 300
Received 82 bytes from 8.8.8.8#53 in 36 ms
$ host -v www.google.com 192.168.159.2
Trying "www.google.com"
Received 32 bytes from 192.168.159.2#53 in 15 ms
Trying "www.google.com.localdomain"
Using domain server:
Name: 192.168.159.2
Address: 192.168.159.2#53
Aliases:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34254
;; flags: qr aa; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.google.com.localdomain. IN A
;; ANSWER SECTION:
www.google.com.localdomain. 5 IN A 173.194.35.178
Received 60 bytes from 192.168.159.2#53 in 13 ms
Trying "www.google.com.localdomain"
Host www.google.com.localdomain not found: 5(REFUSED)
Received 44 bytes from 192.168.159.2#53 in 15 ms
Trying "www.google.com.localdomain"
Host www.google.com.localdomain not found: 5(REFUSED)
Received 44 bytes from 192.168.159.2#53 in 15 ms
$ dig www.google.com
; <<>> DiG 9.9.2-P1 <<>> www.google.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: REFUSED, id: 21052
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; MBZ: 0005 , udp: 4096
;; QUESTION SECTION:
;www.google.com. IN A
;; Query time: 16 msec
;; SERVER: 127.0.1.1#53(127.0.1.1)
;; WHEN: Sun Sep 29 19:56:07 2013
;; MSG SIZE rcvd: 43
$ dig @8.8.8.8 www.google.com
; <<>> DiG 9.9.2-P1 <<>> @8.8.8.8 www.google.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 5098
;; flags: qr rd ra; QUERY: 1, ANSWER: 6, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;www.google.com. IN A
;; ANSWER SECTION:
www.google.com. 94 IN A 173.194.70.104
www.google.com. 94 IN A 173.194.70.106
www.google.com. 94 IN A 173.194.70.105
www.google.com. 94 IN A 173.194.70.99
www.google.com. 94 IN A 173.194.70.147
www.google.com. 94 IN A 173.194.70.103
;; Query time: 34 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Sun Sep 29 19:55:52 2013
;; MSG SIZE rcvd: 139
$ dig @192.168.159.2 www.google.com
; <<>> DiG 9.9.2-P1 <<>> @192.168.159.2 www.google.com
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: REFUSED, id: 53146
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; WARNING: recursion requested but not available
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; MBZ: 0005 , udp: 4096
;; QUESTION SECTION:
;www.google.com. IN A
;; Query time: 16 msec
;; SERVER: 192.168.159.2#53(192.168.159.2)
;; WHEN: Sun Sep 29 20:04:26 2013
;; MSG SIZE rcvd: 43